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Languages : en
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Contributions to Embryology Vol. 7, Nos. 20-23
Contributions to Embryology, Vol. 7: Nos. 20, 21, 22, 23 (Classic Reprint)
Author: Carnegie Institution Of Washington
Publisher: Forgotten Books
ISBN: 9781397311030
Category : Science
Languages : en
Pages : 388
Book Description
Excerpt from Contributions to Embryology, Vol. 7: Nos. 20, 21, 22, 23 During the past year the writer has published two shorter communications regarding the development of the connective tissue and cartilaginous coverings that inclose the membranous labyrinth, one of which dealt with the histogenesis of the cartilaginous capsule and the other with the periotic tissue-spaces that are formed in the interval between the cartilaginous capsule and the membranous labyrinth. In the present paper the same matter will be treated in more complete form and a general description will be given of the development of the otic capsule as a whole and of the problems involved in its growth. In making this study the effort has not been so much toward the determination of the exact form of the capsule as it has been toward the detection of some of the factors that are involved in'the production of this form. These two problems, however, are not to be altogether separated. It is the distinctive form of the otic capsule that makes it a particularly favorable place for determining the histological features of the growth of such a structure. Owing to the fact that it is so well provided with known landmarks, the changes in its size and form can be accurately followed and it is therefore possible to determine deductively at what points, for instance, new cartilage is being laid down and at what points it is being removed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Publisher: Forgotten Books
ISBN: 9781397311030
Category : Science
Languages : en
Pages : 388
Book Description
Excerpt from Contributions to Embryology, Vol. 7: Nos. 20, 21, 22, 23 During the past year the writer has published two shorter communications regarding the development of the connective tissue and cartilaginous coverings that inclose the membranous labyrinth, one of which dealt with the histogenesis of the cartilaginous capsule and the other with the periotic tissue-spaces that are formed in the interval between the cartilaginous capsule and the membranous labyrinth. In the present paper the same matter will be treated in more complete form and a general description will be given of the development of the otic capsule as a whole and of the problems involved in its growth. In making this study the effort has not been so much toward the determination of the exact form of the capsule as it has been toward the detection of some of the factors that are involved in'the production of this form. These two problems, however, are not to be altogether separated. It is the distinctive form of the otic capsule that makes it a particularly favorable place for determining the histological features of the growth of such a structure. Owing to the fact that it is so well provided with known landmarks, the changes in its size and form can be accurately followed and it is therefore possible to determine deductively at what points, for instance, new cartilage is being laid down and at what points it is being removed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Contributions to Embryology, Vol. 12 (Classic Reprint)
Author: Carnegie Institution Of Washington
Publisher: Forgotten Books
ISBN: 9781391809595
Category : Science
Languages : en
Pages : 418
Book Description
Excerpt from Contributions to Embryology, Vol. 12 That the dissolution of these early embryos, and undoubtedly also Of the chorionic vesicles, is not due primarily or even very materially to phagocytic activity, is very evident, even upon cursory examination. In the presence Of the intact chorionic and amniotic vesicles such a process is wholly excluded. Besides, one never sees any evidence of phagocytosis of the preserved fetal by the maternal tissues in human conceptuses, although evidences of the contrary processes are not wanting. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Publisher: Forgotten Books
ISBN: 9781391809595
Category : Science
Languages : en
Pages : 418
Book Description
Excerpt from Contributions to Embryology, Vol. 12 That the dissolution of these early embryos, and undoubtedly also Of the chorionic vesicles, is not due primarily or even very materially to phagocytic activity, is very evident, even upon cursory examination. In the presence Of the intact chorionic and amniotic vesicles such a process is wholly excluded. Besides, one never sees any evidence of phagocytosis of the preserved fetal by the maternal tissues in human conceptuses, although evidences of the contrary processes are not wanting. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.